TIINA231AIYFDR
Overview
The INA231AIYFDR is a high-side or low-side current-shunt and power monitor with an I2C and SMBus-compatible interface. It monitors both a shunt voltage drop and the bus supply voltage, providing programmable conversion times and averaging modes. The device is designed for precision power monitoring in space-constrained applications, supporting bus voltages up to 28V.
Why Choose This Part
The device offers high accuracy with a 0.5 percent maximum error and features an extremely low sleep current of 3uA for power-sensitive designs. Its 1.65mm x 1.39mm DSBGA package is ideal for high-density layouts where PCB real estate is at a premium.
Applications
Key Specifications
Getting Started
To evaluate this part, use the INA231EVM evaluation module which provides a hardware platform for testing different shunt resistors and bus voltages. Connect the I2C interface to a microcontroller like an MSP430 or an Arduino for data logging, and ensure the shunt resistor is sized according to the expected current range to maximize the 16-bit resolution.
INA231A Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Stock |
|---|---|---|
| INA231AIYFDR (this part) | XFBGA-12 | 3,177 |
| INA231AIYFFR | UFBGA-12 | 37,393 |
